Bucket.



H. S. ATKINSON,

BUCKET.

APPLICATION man MAY 23. 1913.

Patmmd Dec. 11,1913.

2 SHEETS-SHEET 1.

KM v W H. S. ATKINSON.

BUCKET.

APPUCATIQN FILED MAY 23.1913- Pmmedl m. 11, 191?.

2 SHEETS-SHEET 2.

misses. V

7 COMPANY, OFNEW YORK, N. Y., A CORPORATION OF NEW YORK.

BUCKET.

To all whom it may concern:

Be it known that I, HERBERT S. ATKIN- soN, a citizen of the United States, and residing at East Orange, in, the county of Essex and State of New Jersey, have invented. certain new and useful Improvements in Buckets, of which the following is a full, clear, and exact specification, such as will enable others skilled in the art to which it. appertains to make and use the same. I i

This invention relates to hoisting buckets, andmore especially to those of the type now generally known as the clam shell.

One example of such bucket, and one now very largely used, is found in the patent to Herbert S. Atkinson, No. 906,184,dated December 8, 1908, in which are hown suspended from a supporting bucket head a plurality of bowl sections or segments, each of the bowl sections being connected to the headvby means of a pair of rods or links which oscillate back and forth as the bowl chains, suspended from the bucket head, are

i wrapped about the hubs of the power wheel in closing the bucket, and unwound therefrom in opening. These chains, as will be seenfcomprise a single section or strand secured to the bucket head and a double sec tion, or a plurality of strands, between which the single section is-adapted to lie whenthe chain is wrapped upon the hub of the power wheel. f' f In the bucket just referred to, it is very important that there be as little'lateral' movement of the bucket head relative to the connecting rods and bowl sections and power wheel as possible, since such movement would tend to prevent the respective chain sections from aliningproperly whereby the singlefsection mightb'epermitted to over lap one of the strands composing the plural section, instead of lying between the same, resulting in stress and wear upon the chains,

and possiblebreakage. As these chains are Specification of Letters Patent.

sections and power wheel or vice versa, and thereby servlng to keep the chaln sections properly alined, it has been foundexpedi ent toprovide a sort of truss frame, asillustrated in the patent hereinbefore referred to,

comprising for each bowl section a set of It has also been found desirable for the same reasons to provide other truss members connected at approximately the same bearing point on the bowl sections and extending diagonally therefrom, one to each of the side arms of the bowl sections. The elimination, however, of such truss members is desirable not only on account generally of the greater clearance obtained in the bucket for the material tobe handled but as frequently the bucket may be used for conveying or transferring materials placed or thrownby manual labor into the bucket in closed posi tion, such truss members are atsuch' times an obstacle to'the loading of the bucket. i The object of the present invention is to provide a bucket of the class referred to,

embodying, in its construction, elements serving the purpose for which the truss members referred to have been employed, viz. 'to keep the chain sections properly alined, and yet retaining unobstructed the aar c.

HERBERT S. ATKINSON, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO THE HAYWARD Patented Dec. ill, 191W.

Application filed May 23,1913. Serial no. 769,378.

space heretofore occupied by such truss members. v

A further object of my invention is to provide a bucket more simple in its construction and less costly to buildthan buck ets otherwise constructed.

All of these objects will be apparent from the following description, taken in connection with the accompanying drawings, in which,-

Figure 1 is a perspective view of a bucket constructed according to our invention;

Fig. 2 isa detail elevation, with a portion removed;

Fig. 3 is a side elevation of the structure shownin Fig. 2;

Fig. 4 is an end elevation of the bucket shown in Fig. 1, but with a modification of certain features; I Fig. 5 is a detail on line 5+5 of Fig.4;-

and

Fig. 7 is a detail elevation showing the f rm"of p ns e sa. 7.

Referring to the; construction illustrated in Figs. 1, 2 and 3, B represents the entire bucket, which comprises a supporting head, indicated in whole at C, a plurality of bowl bers or connecting rod E, E, which latter are'pivotally' connected to th elrear edge of the'bowl sectionatF, F. Thebowl sec tidn D is piv'otallyconnected at G, G to'fla' set fof; oscillating members or connecting rods H, H, which latter'are rigidlyconnected to the Supporting head 0.

To the bowl sections'D, D areri'gidly seciired, at each side thereof, sidearins I, I, J, J 'pi'votallyf mounted upon'which and secured' therEtO by the shaft Z is a" power wheel K, adapted to beactuated bya-closing'; line Kfljjfhich line is guided'by an idler' sheave 'K 'm'ounted upon the head C. I The twer wheerK; at each side thereof, has a hubK Operating chains K are secured to said hubs and, at their upper ends, are secured to-thehead C. The bucket 'is'suponsa -arsed and lowered byfmeans of a holding rope L attached "to a pin L mounted {in the head of the bucket,

,s The supporting. head C,; which is preferablyfin 'the form of a single castingdcomf prises a maingb'ody. portion M, horilzon'tallyi apertured at M to receiveapivotpin M,

'which latter also passes through the upper ends of the pivotally mounted oscillating members orconnecting rods E, EL Atthe upper v portion 7 of the I body [portion M is formed, preferably. integral therewith, a mu i g-N for the idler sheave K herein;

a before -referred*to. Extending downwardly and rearwardly. from the main bodypori5l011-M are asetjof two holding members or arms 0, O. The holding members or armsO, O are shouldered at -P, Pi to afford bearing surfaces for the ends of the connecting -rods H, H said holdingv members and. connecting rods H, H,.being rigidly secured together by. the rivets Q;

;- In -F-ig.-;l" is embodied a modification in;

th atfthe'connecting rods H, Hf are carried entirely up to the pivot pin M but each is rigidly secured {toone of the holding members; 0,0 softhat the holdingmembers and COI'lnQCt7lng;T0dS secured-thereto move as one.

A further important feature of my. invent-i-on=is the,combined'aliningiand rope guard frame illustrated more particularly in Figs. '1;, ;4 -ai1d;- 5,:which; will now be described. Upon; each of the side arms J, J 5 i'sfOrmed', at the inner side thereof, a spider R, which comprises the holjdingg lugs R -R and a boss R which, holding lugs and boss areprovide'd with jchannels R? formed-by the projectingedges It. Within the respective channel's-R of the lugs R", R and of the from the side arms J to the side arms J, and for the most part are diagonally disposed, both to spanthe periphery of the sections orise'gm'entsindicated at D, D, the v; bowl section D being pivotally supported from the head C by a set of oscillating inempower wheel K, as well as to form a truss adapted to take any lateral thrust or strains each other, and is adapted'to prevent any lateral movement of one relative to the other, so that said side arms J J and said guard frame, in the operating movemeil'ts of the bowl sections, move substantiallyhs' one, said side arms J, J having" an oscillatin'g'movement upon the pivot piir J' and said guard frame having a limited rotary movement about said pin, as an axis, coincident with the movement of said side arm's.

It will be observed that, while I have dispensed with the use of truss members, such as hereinbefore' referred to, and which, as

alrejady"'stated, occupy considerable valuable space, I have not eliminated the pur posesand'fu'nction's performed by those members, but have substituted other means, for accomplishing the desired result, for it will be evident that'the holding memb rs 0,- O", either as the device isshown in Fig.

1, orasshown in Fig. 4, will take and with stand any lateral' 'thrustof the bowl section D, acting'on the connecting rods H, H", and as the side arms J, J-upon' which is supported the power, wheel Kare rigidly secured to each other by the uard frame members R, R B", so as to inche in effect 'a' single operating element, the'result will be to hold in alinemen'tth'e power wheel Kaxi'd operating chains K I By this construction I not onlyacc oin plish the results specified, but" do" so at a large saYingin cost, since the supporting. head and holding arm's may/be formedas a single casting, which" is relatively mes-- pensive compared with the making. of a' number of separate' p'arts, as in th'e caseof the truss members heretofore used: a

It will be obvious, therefore, that 'I have provided an improved bucket, which is very 'simple' in its construction, which is less costly to build, which has fewer wearing.

parts and which dispenses with the 'useof The guard frame,

truss members which interfere'with the niii terials handled-with considerable economy in space-while at the same time securing the results and advantages heretofore accomplished by the employment of such members.

I desire it to be understood that I do not confine myself to the precise details of construction and arrangement of the invention herein set forth, as modification and variation may be made without departing from the spirit of the invention, as defined by the mechanism and bowl sections, comprising a main body portion and a plurality of depending arms rigid thereon, adapted to straddle said power wheel and rigidly secured to the connecting rods of one bowl section, and means rigidly connecting the side arms of said bowl section.

2. In a bucket, the combination of a supporting head, a plurality of bowl segments, oscillating connecting rods connected thereto and to said head, bowl operating mechanism including av power wheel and operating chains therefor, the latter formed of single movement of said head relative to said last named rods and said bowl operating mechanism and retain said chain sections in proper alinement.

3. In a bucket, the combination of a supporting head, a plurality of bowl segments, oscillating connecting rods connected thereto and to said head, side arms on said bowl segments, bowl operating mechanism including a power wheel and operating chains, said chains formed of single and plural sections having operative connection with said head and with said power wheel, said supporting head comprising a main body por tion and depending arms rigid thereon and rigidly secured to the connecting rods of one bowl segment, and a plurality of guard arms rigidly connecting the side arms of said last named bowl segment and spanning the periphery of said power wheel, said main body portion and said depending arms and guard arms being arranged and adapted to prevent lateral movement of said head relative to said last named connecting rods and operating mechanism.

HERBERT S. ATKINSQN.

Witnesses:

EUGENE S. MACDONALD, LAURA E. SMITH.

Copies of this patent may be obtained for We centa each, by addressing the flommilaaioner e1? Watentii,

aahinmou, JD. e." 

